BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 17 35.4%
2 United States 9 18.8%
3 Netherlands 7 14.6%
4 Denmark 4 8.3%
5 United Kingdom 3 6.2%
6 Argentina 2 4.2%
7 Russia 1 2.1%
8 Taiwan 1 2.1%
9 Estonia 1 2.1%
10 France 1 2.1%
11 Germany 1 2.1%
12 Korea, Republic of 1 2.1%